The handy Benchtop Kit contains an assortment of RamRodz for the most popular pistol caliber sizes along with a gauge sizing chart. The convenient and refillable case is ideal for in-store coutnertop displays, in-the-field sales demonstrations, or work bench use. Mfg: Ramrodz Inc. SPECS: Includes: 400 breech, 100-.22/.223/5.56, caliber, 60-mm/.38/.357/.380 caliber, 50-.40/10mm caliber, 40-.44/.45 caliber, 30-.50 caliber.